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Agrobiology

Soil is a habitat or a place to live different kinds of living organisms or bodies in the ground. Based on the function, generally there are two classes of bodies live in the soil, which is beneficial organisms and harmful. Beneficial organisms are organisms involved in the process of degradation or decomposition of organic material, binding or provide nutrients and ...

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Phytoplankton Management

1. The presence of phytoplankton ponds are basically indispensable. Phytoplankton are part of a community of microbes that play a role in arranging the desired culture conditions. Besides being able to utilize the remaining nutrients, the presence of phytoplankton also reduce the intensity of light, produce oxygen, stabilizing the temperature as well as contributing to the needs of nutrient for ...

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Turbidimeter Tools

Turbidimeter is one tool that is functioning to measure water turbidity. Turbidimeter is a tool that has optical properties due to the dispersion of light and can be expressed as the ratio of the light. which reflected the light that arrives. Intensity of light reflected by a suspension is a function of the concentration if other conditions constant. There are ...

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Diseases Caused by Virus

There are several types of viral diseases that have been identified include: 1) KHV (Koi Herpes Virus) 2) IHHNV (Infectious hypodermal and Hematopoitic Necrosis Virus), 3) HPV (Hepatopancreatic ParvolikeVirus), 4) MBV (Monodon Baculavirus), 5) SEMBV (Systemic Ectodermaland mesodermal Baculovirus) or WSBV (White Spot Baculovirus) 6) YHV (Yellow Head Virus). 7) IMNV (Myonecrosis Infectious Virus) 8) TSV (Taura Syndrome Virus) 9) ...

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Pengaruh Struktur Tanah

Struktur tanah sangat berpengaruh dalam bidang pertanian. Tanah sebagai media tumbuh bagi tanaman menjadi penentu seberapa hasil panen yang akan didapat. Jika strukturnya terlalu mantap maka akar akan sulit menembusnya, sebaliknya jika kemantapan strukturnya terlalu lemah maka ketersediaan unsur hara dan air akan sedikit karena tanah tidak dapat mengikat unsur hara dan air dengan kuat, oleh karena itu dibutuhkan struktur ...

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Basic Mud Pool / Pond

Value potential redok pond bottom mud showed that soil conditions can be used to follow the progress of chemical reactions and biological phenomena in the pond. With redox potential negative value indicates the reduction reaction, which can produce compounds that are toxic to shrimp like compound sulphide (H₂S), nitrite and ammonia. Therefore, it is important to observe basic mud during ...

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